Given Number of plants = 5625 Concept By using prime factorization method Calculation Let the number of rows be x ⇒ Number of trees in each row = x ⇒ Total number of tree planted =x×x ⇒ Total number of tree planted =x2 ⇒x2=5625 ⇒x=√5625 ⇒x=√5×5×5×5×3×3 ⇒x=5×5×3 ⇒x=75 ⇒ The number of rows = 75 ∴ The number of rows = 75